What are the two categories of minerals classified into?
                                
                                
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                                    4 min read                                
                            
                                Over 90% of the Earth's crust is composed of minerals containing silicon and oxygen, which is why minerals are primarily sorted into two major groups based on their chemical composition: silicates and non-silicates. This fundamental classification system allows geologists to understand the diverse properties and structures of thousands of different mineral species found in the Earth's crust.